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SubjectRe: [PATCHv3 5/6] dt-bindings: fpga: add authenticate-fpga-config property
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On 1/25/21 11:05 PM, Moritz Fischer wrote:
> On Mon, Jan 25, 2021 at 02:56:27PM -0600, richard.gong@linux.intel.com wrote:
>> From: Richard Gong <richard.gong@intel.com>
>>
>> Add authenticate-fpga-config property for FPGA bitstream authentication,
>> which makes sure a signed bitstream has valid signatures.
>>
>> Signed-off-by: Richard Gong <richard.gong@intel.com>
>> ---
>> v3: no change
>> v2: put authenticate-fpga-config above partial-fpga-config
>> update commit messages
>> ---
>> Documentation/devicetree/bindings/fpga/fpga-region.txt | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/Documentation/devicetree/bindings/fpga/fpga-region.txt b/Documentation/devicetree/bindings/fpga/fpga-region.txt
>> index e811cf8..d0d3234 100644
>> --- a/Documentation/devicetree/bindings/fpga/fpga-region.txt
>> +++ b/Documentation/devicetree/bindings/fpga/fpga-region.txt
>> @@ -182,6 +182,7 @@ Optional properties:
>> This property is optional if the FPGA Manager handles the bridges.
>> If the fpga-region is the child of a fpga-bridge, the list should not
>> contain the parent bridge.
>> +- authenticate-fpga-config : boolean, set if do bitstream authentication only.
> I don't understand. Can I do authenticate-fpga-config AND
> partial-fpga-config?

Yes, but not simultaneously.

Flag authenticate-fpga-config is used to first check the integrity of
the bitstream. If the authentication passes, the user can perform a full
or partial configuration to actually configure the bistream to device.

>> - partial-fpga-config : boolean, set if partial reconfiguration is to be done,
>> otherwise full reconfiguration is done.
>> - external-fpga-config : boolean, set if the FPGA has already been configured
>> --
>> 2.7.4
>>
> Please clarify,
>
> Moritz
>
Regards,
Richard

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